Question about Sennheiser HD 25 SP Consumer Headphones

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Cahnging plug Hi I got in touch with Sennheiser directly but they gave me no reply: I bought the HD-25 sp's to use with my ipod, so need to change the 1/4" jack to a mini-jack. There are 4 colours for the cables with no indication as to which is the ground and which is live. I've soldered it up just for now but I don't know if the phase is right:left- yellow and greyright- red and blueI've soldered the yellow and blue to the tip and ring and the others to the sleeve.Any ideas which are the right cables?Thanks,Ed Devane

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Re: cahnging plug

The standard HD25SP cable's 1/4" jack screws over the mini-jack. There's no reason for you to do any soldering. If you have a few inches of cord left from where you cut the plug off you may want to re-splice the cable back together to their corresponding colours. Then unscrew the 1/4" ******** to reveal the mini-jack.

Posted on Jul 27, 2009

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My HD 205 headphones broke last weekend, ive had them for four monthes and when i was listening to music on my ipod touch the headphones sounded like they weren't plugged in properley, i moved the wire...

It sounds like the wires around the jack have become frayed on the inside. If you were to open up the rubber casing around the wires, it would look exactly like that. This is normally caused by improperly wrapping the wires and by not being gentle when plugging them in and removing them. It could be caused by other things, such as electrical damage, but that is much more rare. If you have soldering experience and feel comfortable opening up the rubber casing and working on them, it's not too difficult. You would need to remove the bad portion of the wire and replace it. However, it is just as easy and cost-efficient to have them fixed at an audio repair shop. It should cost no more than $20. Hope this helps!

Mar 28, 2011 | Sennheiser HD 205 Professional Headphones




on Jun 01, 2008 | Sennheiser HD 25 Professional Headphones

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The right speaker of my sennheiser hd 435 is not working while the left one is working just fine. I checked the wires inside and found nothing amiss.

Hi, after checking the wire and no damaged,it means that the speaker itself is damaged.You can replace it if can get a spare around repair stores around you.

Thanks for using fixya...

Oct 27, 2010 | Sennheiser HD 435 Consumer Headphones

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My left channel in sennheiser hd 465 is not working and will not play any sounds. please help!

As long as it is NOT a wireless or noise cancel type, try looking at my tip on headphones dodgy cable/plug problems.

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The right headphone of my sennheiser is kinda lacking of bass 2 days ago is was the opposite

if its in warranty it will be replaced by company if its not ur coil need to be changed try to remove small iron particles stucked between coils

Jun 24, 2010 | Sennheiser HD 515 Consumer Headphones

1 Answer

Sound in one headphone keeps going off and on, moving the wire around can fix it temporarily but is very annoying

You have a break in the cable. You don't say in what area it's in, so I will have to give you 3 ways of clearing the fault.
1: Break in, near or around the plug. The best solution is to cut off the plug making certain the break area goes with it. You can then fit a new 3.5mm plug. If you need advice on how to do this let me know.
2. Break halfway to 2-thirds along the cable. Again cut the cable to a point clear of the break, again fit a new plug. To extend it you can purchase an extension headphone cable from any hi-fi shop.
3. Break to close to headset. In which case you will need to replace the entire lead. To do this you need to open up the headphones. Access is obtained by removing the pad(s) and any foam. You might need to force the foam off. You can glue it back on afterwards. You should then see screws to open it.
Fitting new plugs or attaching the wire inside will require the use of a small soldering iron.

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1 Answer

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Yes, you may. RCA connections are universal, just don't connect an input lead to an output jack: you might damage the jack.

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